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General Mach Discussion / motor setup

« on: December 29, 2006, 07:54:01 PM »

I am setting up a replacement controller for a stepper motor system.  No matter what I do I cannot get the motors to run smooth either in jog or running a program.  I have tried about every setting on the motor tuning possible.  I upped the amperage on the conroller boards and it worked great for about 3 minutes.  Now its back to jerky.  What might I be missing in Mach 3's settings? 

Thanks, John